| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a viscous-fluid ejection device made to eject a viscous fluid by pressurizing it with a lower pressure. Ž<P>SOLUTION: The viscous-fluid ejection device 10 is constituted of a cylindrical body 12 having a cylindrically formed viscous-fluid storage chamber 26 for storing a viscous fluid 14 in the cylinder, a plunger 16 that pushes out the viscous fluid 14 with its chip inserted in the viscous-fluid storage chamber 26, a piezoelectric driver 18 that drives the plunger 16 opposing an energizing force that energizes the viscous fluid 14 in the direction opposite to the ejection direction of the same, a nozzle 20 that is disposed on the axial end of the cylindrical body 12 to face the plunger 16 and is equipped with an ejection port 42 for ejecting the viscous fluid 14, a partition member 50 that is disposed between the ejection port 42 and the chip of the plunger 16 and forms a viscous-fluid pressurization chamber 52 partitioned from the viscous-fluid storage chamber 26, with the partition member 50 shaped smaller than the chip of the plunger 16 and equipped with a viscous-fluid feeding hole 54 for feeding the viscous fluid 14 to the viscous-fluid pressurization chamber 52 from the viscous-fluid storage chamber 26. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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